38 U.S.C. § 7299: Limitation on activities of retired judges

(a) A retired judge of the Court who is recall-eligible under section 7257 of this title and who in the practice of law represents (or supervises or directs the representation of) a client in making any claim relating to veterans’ benefits against the United States or any agency thereof shall, pursuant to such section, be considered to have declined recall service and be removed from the status of a recall-eligible judge. The pay of such a judge, pursuant to section 7296 of this title, shall be the pay of the judge at the time of the removal from recall status. (b) A recall-eligible judge shall be considered to be an officer or employee of the United States, but only during periods when the judge is serving in recall status. Any prohibition, limitation, or restriction that would otherwise apply to the activities of a recall-eligible judge shall apply only during periods when the judge is serving in recall status.